<?php

namespace uuid;

class UUid
{

	static function create($prefix = "")
	{
		$chars = md5(uniqid(mt_rand(), true));
		$uuid = substr($chars, 0, 8) . '-'
			. substr($chars, 8, 4) . '-'
			. substr($chars, 12, 4) . '-'
			. substr($chars, 16, 4) . '-'
			. substr($chars, 20, 12);
		return $prefix . $uuid;
	}
}
